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LH-6 Environmental Testing Chamber
 Environmental Testing Chamber



TUVRheinland icon
In Stock

The LH-6 is a dynamic test chamber known for its ability to run unparalleled tight temperature and humidity control.

The test chamber is designed for minimal maintenance. Run long-term tests at a constant, steady-state temperature and humidity, or cycle testing with well-tuned reliability.

LH-6 model is a compact laboratory floor model environmental test chamber. It's known for its exceptional ability to tune into and control temperature and humidity performance, within -20°C to +94°C (-4°F to +201.2°F) and 10% RH to 95% RH.

LH-6 test chambers feature heating systems equipped with open ceramic-core nichrome heaters for reliable and accurate temperature control within ±0.5°C.

The humidity system has a standard range between 10% and 95%. To extend your humidity range, see the optional features section. View RH Chart.  

The cooling system in an LH-6 consists of a self-contained, compact, mechanical, single-stage refrigeration system. 

LH Series Test Chambers have incorporated AESONE CONNECT instrumentation creating a robust connected device for a standard and uniform interface making operation easier. Learn more in the Instrumentation Tab below.

Buy $20,861 (base price)
Rental $2,200/month
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  • Specifications
  • Standard Features
  • Instrumentation
  • Safety Features
  • Optional Features
  • Downloads
  • Videos
  • Dew Point Calculator


LH Series

Illustration of a 6-foot tall man
Height: 72" (6' tall)

LH-1.5 LH-1.5-B

Height: 34"
Volume: 1.369 cu. ft.


Height: 47"
Volume: 5 cu. ft.


Height: 53"
Volume: 10 cu. ft.
Interior: 20.0W x 18.0D x 24.0H (in)
  508W x 457.2D x 609.5H (mm)
Exterior: 33.5W x 36.0D x 46.7H (in)
  850.9W x 914.4D x 1186.2H (mm)
Volume: 5 cubic ft
  141.58 liters
Temperature: -20°C to 94°C (-4°F to 201.2°F)
Humidity: 10-95% RH, limited by +4°C Td (for 98% add option)
Humidity Fluctuation: ±2% RH at sensor
Electrical Supply:  110 VAC, 1 PH, 60 HZ
Full Load Amps: 20 A
Facility Power Receptacle: NEMA 5-20
Refrigeration System:  Single stage
Mobility: Will fit through 36 in doorway
Approximate Product Weight: 480.0 lbs (218 kg) without added options
Approximate Shipping Weight: 590.0 lbs (268 kg) without added options

*Ideal ambient temperature conditions for test chambers is 23°C (73.4°F). The temperature and humidity range of assured performance is between 15°C and 25°C (59°F/77°F) and 30-50% relative humidity. Conditions outside this range may affect the performance of your test chamber and reduce the lifespan of the equipment.

Standard Features


  • Temperature range: -20°C  to 94°C (-4°F to +201.2°F)
  • Floorstand with casters included
  • Overall Dimensions including Standard Floorstand (WxDxH): 34.7W x 38.9D x 72.2H
  • External cabinet construction consists of heavy-gauge, cold-rolled steel with powder coat, bone color, and textured matte finish
  • Internal workspace constructed with type 304 stainless steel
  • Full opening door with adjustable manual latch
  • Multipane 12 in x 12 in viewing window, no heat available
  • Interior light with exterior switch on cabinet face and operable on AESONE CONSOLE 
  • Fully adjustable shelf, one wire-grid stainless steel shelf 
  • Port configuration: left wall access port and plug with 3 in (76.2 mm) diameter
  • Gas Inlet compatible with GN2 purge and dry air purge
  • Forced air circulation
  • Self contained refrigeration system
  • Steam Generator Humidity System



CONTROLLER   AESONE CONNECT allows for secure remote access to your test chamber and gives easy profile creation, operational control, and data management.

LH Series Test Chambers have upgraded to include AESONE CONNECT creating a robust connected device for a standard and uniform interface making test chamber operation easier.

AESONE XCHANGE is hardware internal to the chamber that increases your functionality

  • Connects the test chamber controller to your network for increased accessibility
  • On-board multi-year data logging

AESONE SOFTWARE gives you the power to

  • Remote chamber operation and monitoring, 
  • Web-based test profile creation, 
  • Viewing current data and historical data visually
  • Secure multi-level user access 


WATLOW F4T PROGRAMMABLE CONTROLLER. Features a 4.3” capacitive touchscreen minimizing the chance for error. Ethernet communication supported by AESONE HARDWARE. View more controller options


  • TEMPERATURE SENSOR. Measured at the point of airflow entering the workspace. Class A, 3-wire, 100 Ohm Platinum RTD sensor
  • RELATIVE HUMIDITY SENSOR. Measured at the point of airflow entering the workspace. Speed of airflow does not affect measurement. Sensor is highly accurate between 10-95% RH, over the entire temperature operating range of -70°C to +180°C (-94°F to +356°F)
  • Solid-State Humidity Sensor
  • View sensor options

OPTIONAL DATA LOGGERS. View additional data loggers

Safety Features


  • HIGH/LOW-TEMPERATURE CONTROL. An adjustable temperature limit controller allows you to program the highest and lowest temperature of the device under test, protecting products from compromising temperature exposure.
  • Over Temperature Heat Fusing
  • Low Water Steam Generator Over Temperature Circuit
  • Refrigeration System Over-Pressure Safety Circuit
  • TUV Rheinland certified meeting UL 61010-1, US, C, E

Optional Features

  • Shelf Modification
  • Custom Porting Sizes
  • Customize Window in Door or Blank Door
  • Internal Vapor Proof Light with External Switch
  • Water Demineralizer Cartridge System
  • Self Contained Water Recirculating System
  • High Humidity Sensor to extend the humidity range up to 98% RH
  • Desiccant Air Dryer to reach conditions as low as 5% RH 
  • Dry Nitrogen Purge to keep condensation and frost from accumulating on DUT surfaces at cold temperatures and to prevent oxidation of metals surfaces at high temperatures



Dew Point Calculator

Dew Point Calculator

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